Focus in Searching Core–Periphery Structures

The authors are very grateful to Associate Editor Phanish Puranam for his guidance and many suggestions that greatly improved this paper. They also thank the two anonymous reviewers for their very constructive and helpful suggestions. The manuscript benefitted substantially from constructive comments by William Ocasio, Hart Posen, Pasi Kuusela, Georg von Krogh, Stefano Brusoni; and participants at the ETH’s Brown Bag seminar, the 2014 Academy of Management Meetings, and the 2014 Organization Science Winter Conference. All remaining errors are the authors’ own.